GEOMETRY AND TRIGONOMETRY - Jamb Mathematics Past Questions and Answers

Question 156:

• JAMB 1980

A cylindrical motor of height 12cm has uniform thickness of 2cm. If the diameter of its outer cross section is 10cm, Find the volume of the constituent material. (take \(\pi\) = \(\frac{22}{7}\)

A. \(\frac{6600}{7}\)cm³
B. 270cm³
C. 660cm³
D. \(\frac{4224}{7}\)cm³
E. \(\frac{1980}{7}\)cm³

Question 157:

• JAMB 1980

If PN is perpendicular to QR, find the value of tan x.

A. \(\frac{5}{9}\)
B. \(\frac{3}{5}\)
C. \(\frac{3}{4}\)
D. \(\frac{4}{3}\)
E. \(\frac{5}{3}\)

Question 158:

• JAMB 1980

In the figure, PQ\\SR, ST\\, ST\\RQ, PS = 7cm, PT = 7cm, SR = 4cm. Find the ratio of the area QRST to the area of PQRS.

A. 56.77
B. 56.105
C. 28:105
D. 28:49
E. 56:49

Question 159:

• JAMB 1980

In the figure, If PT is parallel to RS, PQ = PT, and angle SQT = 90^o, Find x

A. 35^o
B. 50^o
C. 55^o
D. 70^o
E. 80^o

Question 160:

• JAMB 1980

In the figure, PS bisects angle QPR. Find the ratio SR:QR.

A. 1:2
B. 1:3
C. 1:4
D. 1:5
E. 1:6